Genus: Similar to Epistylis;
but solitary with a non-contractile stalk; numerous species (Kudo, 1966).
Attached to Cyclops, Cypris, other copepods in fresh water (How to know the protozoa, 1979).
Cell body 28 μm long (Kahl, 1930).
cell body 27 μm long, 21 μm wide, peristome 16 μm wide,
stalk about 18 μm long,
x 640, O-ike waterside park, Kasukabe city, Saitama Pref., Japan, February 15, 2004 by Y. Tsukii
94 μm; x 640